CN Renovations

Sorry if this has already been discussed but we're booking very soon so I didn't have time to read through all the posts. We usually always stay at CN but last year stayed at CSA. I want to go back to CN this year but thought I heard something about renovating. Was wondering if

1) is this currently going on?
2) or have all the rooms been renovated?

Didn't know if there was a lot of noise, etc going on. We're planning to go in December so I can run the reggae marathon. Another post on that coming next...